C328R JPEG Camera Module W/ UART Interface General Description The C328R is VGA camera module performs as a JPEG compressed still camera and can be attached to a wireless or PDA host. Users can send out a snapshot command from the host in order to capture a full resolution single-frame still picture. The picture is then compressed by the JPEG engine and transferred to the host thru serial port. Block Diagram VGA Image Sensor JPEG Compression Engine VCC GND TxD RxD EEPROM (program) Features z z z z z z z z z Small in size, 20x28mm VGA resolution, down sample to QVGA or CIF 3.3V operation Low power consumption 60mA User friendly commands to control the module UART interface of up to 115.2Kbps Auto detect baud rate and make connection to the host Power saving mode Various lens options Pin Description Pin Description VCC Power 3.3VDC TxD Data Transmit (3.3V) RxD Data Receive (3.3V) GND Power Ground Connector specification: 2mm pitch, 4pin single row Reference part no: Suyin 190600 Mating connector: Suyin 140600 GND RxD TxD VCC Bottom View Command Summary Detail Command control, please refer to the user’s manual 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. Initial Get Picture Snapshot Set Package Size Set Baudrate Reset Power Off Data SYNC ACK NAK To configure the image size, color type Get Picture type Set snap shot image type Set the package size to transmit data from module to Host Change the baud rate Reset the whole system or reset the state machine To enter sleep mode Set the data type and length for transmitting data to host Sync signal to connect between host and module Command to indicate the communication success Command to indicate the communication fail with error code Rev 2.01 Electrical Specification VDD = 3.3V+10%, TA = 0 to 25oC Symbol VDD Parameter Condition Min Typ Max Unit 3.0 3.3 3.6 V DC supply voltage Io Normal Operation Current Operating 60 mA Is Suspend Current Suspend 100 uA VIH High level input voltage TTL VIL Low level input voltage TTL 2.0 V 0.8 V Lens Specification C328R C328RS C328R-2225 C328R-2820 C328R-3620IR C328R-3620 C328R-6016 C328R-6016IR Description F/# 2.8 2.8 2.5 2.0 2.0 2.0 1.6 1.6 Focal length (mm) 4.63 4.63 2.2 2.8 3.6 3.6 6.0 6.0 41 41 109 81 50 50 43 43 Yes Yes NA NA Yes NA NA Yes Total height from PCB H (mm) 10 10 18 22 22 22 20 20 Diameter of lens cap D (mm) 9 9 15 14 14 14 14 14 Field of View Diagonal (deg) Filter Option IR-cut filter Board Measurement Note: except C328RS of small lens holder, all other lens holder are with 14x14 as shown below. Dimension of C328RS lens holder is 10x10mm 14 20 14 8.5 28 D H 1 6 4.9 Note: In order to facilitate people for better understanding the communication with the module, we have developed an EV kit, C328-EV232, for user to run under PC Windows environment. However, this module is not designed for PC application. Such PC evaluation is only for better understanding of command control. Rev 2.01